Large-opening crimping machine
By dividing the eight-lobed structure of the crimping machine into two halves and using a hydraulic cylinder side-pressing method, the problem that traditional crimping machines cannot crimp large-opening workpieces has been solved, achieving high-precision and convenient crimping operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI SITE MASCH MFG CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-19
AI Technical Summary
The eight-petal structure of traditional crimping machines cannot effectively crimp large-opening workpieces, and the high center height makes operation inconvenient.
The top and bottom halves of the eight-lobed structure of the crimping machine are divided into two halves, and a hydraulic cylinder side pressure method is adopted. Combined with the design of protrusions and grooves, a large opening crimping is achieved.
Successfully crimped large-opening workpieces, reduced the center height of the eight petals, and improved operational convenience and crimping accuracy.
Smart Images

Figure CN224254683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crimping machine technology, and in particular to a large-opening crimping machine. Background Technology
[0002] The eight-petal structure of a crimping machine is a common mold design, mainly used to achieve uniform pressure and shaping of the workpiece during the crimping process.
[0003] The following problems exist in the existing technology: (1) In traditional crimping machines, the eight-petal motion crimping is driven upward by the lower hydraulic cylinder. For crimping large flange workpieces, due to the large opening, the stroke of the large hydraulic cylinder is very large, which results in the center height of the eight petals being too high, making it inconvenient to operate. (2) In traditional crimping machines, each petal of the eight-petal structure is set as a whole, which makes it impossible to achieve the operation of crimping large openings. Utility Model Content
[0004] The purpose of this invention is to provide a large-opening crimping machine, which separates the top and bottom petals of the eight-petal structure of the crimping machine and uses the side pressure of the hydraulic cylinder to achieve the large-opening crimping operation.
[0005] To achieve the above objectives, this utility model provides a large-opening crimping machine, including a frame, a hydraulic cylinder, a movable plate, a slide rail, a left four-lobed structure, and a right four-lobed structure. The hydraulic cylinder is installed on the right side of the frame, and an opening is provided in the middle of the frame. Slide rails are installed at the top and bottom of the opening. The right end of the movable plate is fixedly connected to the movable end of the hydraulic cylinder, and the top and bottom of the movable plate are slidably connected within the slide rails.
[0006] The left end of the movable plate, located to the right of the opening, is connected to a right four-petal structure, and the frame, located to the left of the opening, is connected to a left four-petal structure. The top petal and the bottom petal are both divided into two halves from the middle, with the left half located in the left four-petal structure and the right half located in the right four-petal structure.
[0007] Preferably, the left half of the top lobe and the bottom lobe are provided with grooves, and the right half of the top lobe and the bottom lobe are provided with protrusions.
[0008] Preferably, the shape and specifications of each petal of the left four-petal structure and the right four-petal structure are matched.
[0009] Preferably, the shape and position of the bump and the groove are matched.
[0010] The advantages and positive effects of the large-opening crimping machine described in this utility model are:
[0011] 1. This utility model successfully achieves large-opening crimping operation by separating the top and bottom petals of the eight-petal structure of the crimping machine and using the side pressure of the hydraulic cylinder, thus solving the problem that traditional crimping machines cannot crimp large-opening workpieces.
[0012] 2. The left half of the top and bottom petals of this utility model are provided with grooves, and the right half of the petals are provided with protrusions. The protrusions and grooves are assembled together. This structural design allows the two halves of the top and bottom petals to fit together tightly, ensuring the alignment and alignment of the eight-petal structure, thereby improving the accuracy and stability of the pressing.
[0013] 3. This utility model adopts the method of hydraulic cylinder side pressure, which reduces the center height of the eight petals and makes operation more convenient.
[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 This is a diagram showing the open state of the eight-petal structure of a large-opening crimping machine according to this utility model.
[0016] Figure 2 This is a diagram showing the closed state of the eight-petal structure of a large-opening crimping machine according to this utility model.
[0017] Figure Labels
[0018] 1. Frame; 2. Hydraulic cylinder; 3. Moving plate; 4. Slide rail; 5. Left four-lobed structure; 6. Right four-lobed structure; 7. Protrusion; 8. Groove; 9. Top lobe; 10. Bottom lobe. Detailed Implementation
[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit the scope of this application.
[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] like Figure 1-2 As shown, a large-opening crimping machine includes a frame 1, a hydraulic cylinder 2, a movable plate 3, a slide rail 4, a left four-lobed structure 5, and a right four-lobed structure 6. The hydraulic cylinder 2 is installed on the right side of the frame 1, and an opening is provided in the middle of the frame 1. The top and bottom of the opening are equipped with slide rails 4. The right end of the movable plate 3 is fixedly connected to the movable end of the hydraulic cylinder 2, and the top and bottom of the movable plate 3 are slidably connected in the slide rails 4.
[0023] Specifically, the height of the opening matches the height of the movable plate 3, and the length of the opening is greater than the length of the movable plate 3.
[0024] Specifically, the top and bottom of the movable plate 3 are provided with protrusions, which are slidably connected to the slide rail 4.
[0025] The left end of the movable plate 3, which is located on the right side of the opening, is connected to the right four-petal structure 6. The frame 1, which is located on the left side of the opening, is connected to the left four-petal structure 5. The top petal 9 and the bottom petal 10 are both divided into two halves from the middle. The half-petal located on the left side is located in the left four-petal structure 5, and the half-petal located on the right side is located in the right four-petal structure 6.
[0026] Specifically, the horizontal left and right end petals of the left four-petal structure 5 and the right four-petal structure 6 are fixedly connected to the frame 1 and the movable plate 3, respectively. The oblique petals of the left four-petal structure 5 and the right four-petal structure 6 are movably connected to the frame 1 and the movable plate 3 through oblique grooves. The two halves of the top petal 9 and the bottom petal 10 are also movably connected to the frame 1 and the movable plate 3 through oblique grooves. Each petal in the left four-petal structure 5 and the right four-petal structure 6 is connected to a spring return structure. When the right four-petal structure 6 moves to the left to align with the left four-petal structure 5, the eight petals are assembled together by mutual compression.
[0027] Specifically, the dividing line between the top lobe 9 and the bottom lobe 10 is the same line as the center line of the eight-lobed structure after the left four-lobed structure 5 and the right four-lobed structure 6 are assembled.
[0028] The top lobe 9 and the left half of the bottom lobe 10 are both provided with grooves 8, and the right half of the top lobe 9 and the bottom lobe 10 are both provided with protrusions 7.
[0029] The shapes and specifications of the petals of the left four-petal structure 5 and the right four-petal structure 6 are matched.
[0030] The protrusion 7 and the groove 8 are matched in shape and position.
[0031] The usage process of this utility model is as follows:
[0032] First, the workpiece to be pressed is placed on a support on frame 1 for support. The support is also equipped with a sliding structure that moves the workpiece forward. By aligning and moving the workpiece, the center of the workpiece is aligned with the center of the eight-petal structure.
[0033] Then, the hydraulic cylinder 2 is activated, and the movable end of the hydraulic cylinder 2 extends, thereby moving the moving plate 3 along the slide rail 4, so that the left four-petal structure 5 and the right four-petal structure 6 are aligned and aligned. The two halves of the top petal 9 and the bottom petal 10 are assembled together by the protrusion 7 and the groove 8 respectively. The eight petals are assembled together by mutual squeezing, and the center end of the eight petals performs a pressing operation on the workpiece.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.
Claims
1. A large-opening crimping machine, characterized in that: The system includes a frame (1), a hydraulic cylinder (2), a movable plate (3), a slide rail (4), a left four-petal structure (5), and a right four-petal structure (6). The hydraulic cylinder (2) is installed on the right side of the frame (1). An opening is provided in the middle of the frame (1). The slide rail (4) is installed at the top and bottom of the opening. The right end of the movable plate (3) is fixedly connected to the movable end of the hydraulic cylinder (2). The top and bottom of the movable plate (3) are slidably connected in the slide rail (4). The left end of the movable plate (3) and the right side of the opening are connected to a right four-petal structure (6), and the frame (1) and the left side of the opening are connected to a left four-petal structure (5). The top petal (9) and the bottom petal (10) are both divided into two halves from the middle, wherein the half-petal on the left side is located in the left four-petal structure (5), and the half-petal on the right side is located in the right four-petal structure (6).
2. The large-opening crimping machine according to claim 1, characterized in that: The top lobe (9) and the bottom lobe (10) are provided with grooves (8) on their left half and with protrusions (7) on their right half.
3. The large-opening crimping machine according to claim 1, characterized in that: The shape and specifications of each petal of the left four-petal structure (5) and the right four-petal structure (6) are matched.
4. A large-opening crimping machine according to claim 2, characterized in that: The shape and position of the protrusion (7) and the groove (8) are matched.